DC · April, 1977
1st Appearance of Gyro-Master (Elroy Soames); 1st Appearance of Pulsar (Benjamin Day); Origin of Gyro-Master (Elory Soames); Versus Gyro-Master; Mary Jo Duffy L.O.C.
The Gyro-Master Strikes Twice!
Writers: Barry Jameson, David Michelinie
Artist: Ric Estrada